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<h1 class="topictitle1">Restoring a NAS File System</h1>
<div><p>This section describes how to restore a NAS file system that has been backed up to the original location or a new location.</p>
<div class="section" id="nas_s_0059__section14342462311"><h4 class="sectiontitle">Context</h4><p id="nas_s_0059__p13356226151412">The <span id="nas_s_0059__text143181219121420">OceanProtect</span> supports restoration to the original location or a new location using backup copies, archive copies (data cannot be restored to the original location using archive copies generated by replication copies), imported archive storage copies, or replication copies (data cannot be restored to the original location).</p>
</div>
<div class="section"><h4 class="sectiontitle">Prerequisites</h4><ul><li id="nas_s_0059__li558413141988">To restore a NAS file system to a new location, a storage device residing at the new location needs to be added to the <span id="nas_s_0059__text1511818204144">OceanProtect</span>. For details about how to add a storage device, see <a href="nas_s_0013.html">Step 2: Adding a Storage Device</a>. The following lists the supported storage device types.<ul id="nas_s_0059__ul1094984711471"><li id="nas_s_0059__nas_s_0013_li3415133617174">OceanStor Dorado V7</li><li id="nas_s_0059__nas_s_0013_li1739551514266">OceanStor V7</li><li id="nas_s_0059__nas_s_0013_li984654311123">OceanStor Dorado 6.x</li><li id="nas_s_0059__nas_s_0013_li151737411958">OceanStor 6.x</li><li id="nas_s_0059__nas_s_0013_li72988389413">OceanProtect 1.3.0 and later versions</li></ul>
</li></ul>
<ul><li id="nas_s_0059__li11503162395513">If a NAS file system is restored to a new location, create a target NAS file system on the storage device where the new location resides and configure a NAS share that uses the same share protocol as the copy to be restored. This is because the NAS file system is restored to a new location through NAS share. Therefore, you need to configure NAS share. For details about how to restore a NAS file system to a new location, see <a href="nas_s_0057.html#nas_s_0057__li129049379340">other restoration modes</a>.</li><li id="nas_s_0059__li17945216184613">If you want to restore a NAS file system to a new location, you need to configure the access permission for the <span id="nas_s_0059__text17718172011416">OceanProtect</span> on the new storage device. For details, see <a href="nas_s_0025.html">Step 4: Configuring Access Permissions (Applicable to OceanStor V5/OceanStor Pacific/NetApp ONTAP)</a>. During the operation, configure a client or add a user for the target NAS share.</li></ul>
</div>
<div class="section"><h4 class="sectiontitle">Procedure</h4><ol><li id="nas_s_0059__li0198134611381"><span>Choose <span class="uicontrol" id="nas_s_0059__en-us_topic_0000001839142377_uicontrol097351016491"><b><span id="nas_s_0059__en-us_topic_0000001839142377_text79731210144915"><strong>Explore</strong></span> &gt; <span id="nas_s_0059__en-us_topic_0000001839142377_text797381084918"><strong>Copy Data</strong></span> &gt; File Systems &gt; <span id="nas_s_0059__en-us_topic_0000001839142377_text75601138121416"><strong>NAS File Systems</strong></span></b></span>.</span><p><div class="note" id="nas_s_0059__en-us_topic_0000001839142377_note414014816184"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="nas_s_0059__en-us_topic_0000001839142377_p15140194811813">For 1.5.0, choose <span class="uicontrol" id="nas_s_0059__en-us_topic_0000001839142377_uicontrol117221257171816"><b><span id="nas_s_0059__en-us_topic_0000001839142377_text1772265701816"><strong>Explore</strong></span> &gt; <span id="nas_s_0059__en-us_topic_0000001839142377_text1272245713186"><strong>Copy Data</strong></span> &gt; File Services &gt; <span id="nas_s_0059__en-us_topic_0000001839142377_text2072255721815"><strong>NAS File Systems</strong></span></b></span>.</p>
</div></div>
</p></li><li id="nas_s_0059__li87691438131514"><span>Copies can be searched by NAS file system resource or copy. This section uses the NAS file system resource as an example.</span><p><p id="nas_s_0059__p142551140161511">On the <span id="nas_s_0059__text6827103218214"><strong>Resources</strong></span> tab page, locate the NAS file system to be recovered by file system name and click the name.</p>
</p></li><li id="nas_s_0059__li02165214225"><span>On the <span class="uicontrol" id="nas_s_0059__uicontrol1812414562220"><b><span id="nas_s_0059__text18993182162710"><strong>Copy Data</strong></span></b></span> page, select the year, month, and day in sequence to locate the copy.</span><p><p id="nas_s_0059__p9918150182310">If <span><img id="nas_s_0059__image886000161711" src="en-us_image_0000001792520510.png"></span> is displayed below a month or date, a copy exists in the month or on the day.</p>
</p></li><li id="nas_s_0059__li7995952193812"><span>In the row of the target copy, choose <span class="uicontrol" id="nas_s_0059__uicontrol4705161613273"><b><span id="nas_s_0059__text04951528155216"><strong>More</strong></span> &gt; <span id="nas_s_0059__text12444191814117"><strong>Restore</strong></span></b></span>.</span></li><li><span>Restore a NAS file system to its original location or a new location.</span><p><ul><li>Restore data to the original location.<p><a href="#nas_s_0059__table1452025982813">Table 1</a> and <a href="#nas_s_0059__table1744425674712">Table 2</a> describe the related parameters.</p>

<div class="tablenoborder"><a name="nas_s_0059__table1452025982813"></a><a name="table1452025982813"></a><table cellpadding="4" cellspacing="0" summary="" id="nas_s_0059__table1452025982813" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Parameters for restoring data to the original location using backup copies</caption><colgroup><col style="width:13.569999999999999%"><col style="width:86.42999999999999%"></colgroup><thead align="left"><tr><th align="left" class="cellrowborder" valign="top" width="13.569999999999999%" id="mcps1.3.4.2.5.2.1.1.2.2.3.1.1"><p>Parameter</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="86.42999999999999%" id="mcps1.3.4.2.5.2.1.1.2.2.3.1.2"><p>Description</p>
</th>
</tr>
</thead>
<tbody><tr><td class="cellrowborder" valign="top" width="13.569999999999999%" headers="mcps1.3.4.2.5.2.1.1.2.2.3.1.1 "><p><span><strong>Location</strong></span></p>
</td>
<td class="cellrowborder" valign="top" width="86.42999999999999%" headers="mcps1.3.4.2.5.2.1.1.2.2.3.1.2 "><p>Location of a file system, which cannot be modified.</p>
</td>
</tr>
</tbody>
</table>
</div>

<div class="tablenoborder"><a name="nas_s_0059__table1744425674712"></a><a name="table1744425674712"></a><table cellpadding="4" cellspacing="0" summary="" id="nas_s_0059__table1744425674712" frame="border" border="1" rules="all"><caption><b>Table 2 </b>Parameters for restoring data to the original location using object storage archive copies</caption><colgroup><col style="width:13.569999999999999%"><col style="width:86.42999999999999%"></colgroup><thead align="left"><tr><th align="left" class="cellrowborder" valign="top" width="13.569999999999999%" id="mcps1.3.4.2.5.2.1.1.3.2.3.1.1"><p>Parameter</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="86.42999999999999%" id="mcps1.3.4.2.5.2.1.1.3.2.3.1.2"><p>Description</p>
</th>
</tr>
</thead>
<tbody><tr><td class="cellrowborder" valign="top" width="13.569999999999999%" headers="mcps1.3.4.2.5.2.1.1.3.2.3.1.1 "><p><span><strong>Location</strong></span></p>
</td>
<td class="cellrowborder" valign="top" width="86.42999999999999%" headers="mcps1.3.4.2.5.2.1.1.3.2.3.1.2 "><p>Location of a file system, which cannot be modified.</p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="13.569999999999999%" headers="mcps1.3.4.2.5.2.1.1.3.2.3.1.1 "><p><span><strong>Share Name</strong></span></p>
</td>
<td class="cellrowborder" valign="top" width="86.42999999999999%" headers="mcps1.3.4.2.5.2.1.1.3.2.3.1.2 "><p>Select the share name of the file system to be restored.</p>
<div class="note"><span class="notetitle"> NOTE: </span><div class="notebody"><ul id="nas_s_0059__nas_s_0059_ul1132413149512"><li id="nas_s_0059__nas_s_0059_li232417146518">For an NFS share, ensure that the current device has the read and write permissions on the NFS share directory and the <strong id="nas_s_0059__nas_s_0059_nas_s_0030_b576222612114">no_root_squash</strong> option is enabled. For details about how to configure NFS share access permissions, see <a href="nas_s_0025.html">Step 4: Configuring Access Permissions (Applicable to OceanStor V5/OceanStor Pacific/NetApp ONTAP)</a>.</li><li id="nas_s_0059__nas_s_0059_li77121156195115">For a CIFS share, ensure that the current device has the read and write permissions on the CIFS share directory. You are advised to use a user in the Administrator group for backup. Otherwise, only files and directories whose read and write permissions are granted to the device can be backed up. For details about how to configure CIFS share access permissions, see <a href="nas_s_0025.html">Step 4: Configuring Access Permissions (Applicable to OceanStor V5/OceanStor Pacific/NetApp ONTAP)</a>.</li></ul>
</div></div>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="13.569999999999999%" headers="mcps1.3.4.2.5.2.1.1.3.2.3.1.1 "><p><span><strong>FQDN/IP</strong></span></p>
</td>
<td class="cellrowborder" valign="top" width="86.42999999999999%" headers="mcps1.3.4.2.5.2.1.1.3.2.3.1.2 "><p>FQDN name or service IP address for accessing a NAS share.</p>
<p>The FQDN format is <em id="nas_s_0059__nas_s_0024_i49311011216">Name of the storage device where a NAS share resides</em><strong id="nas_s_0059__nas_s_0024_b204885331765">.</strong><em id="nas_s_0059__nas_s_0024_i958914467218">Name of the domain to which the storage device is added</em>. For example, if the name of the storage device where a NAS share resides is <em id="nas_s_0059__nas_s_0024_i1299311513208">Huawei.Storage</em> and the name of the domain to which the storage device is added is <em id="nas_s_0059__nas_s_0024_i2993851132016">huawei.com</em>, the FQDN is <em id="nas_s_0059__nas_s_0024_i1899345112011">Huawei.Storage.huawei.com</em>.</p>
<div class="note"><span class="notetitle"> NOTE: </span><div class="notebody"><p id="nas_s_0059__nas_s_0024_p53320310365">If the FQDN is required, configure the DNS service on the device management page of the <span id="nas_s_0059__nas_s_0024_text9722133614203">OceanProtect</span> so that the <span id="nas_s_0059__nas_s_0024_text87224362209">OceanProtect</span> can access external domain names. For details about how to configure the DNS service, see <a href="nas_s_0099.html">Configuring the DNS Service</a>.</p>
</div></div>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="13.569999999999999%" headers="mcps1.3.4.2.5.2.1.1.3.2.3.1.1 "><p><span><strong>Authentication Method</strong></span></p>
</td>
<td class="cellrowborder" valign="top" width="86.42999999999999%" headers="mcps1.3.4.2.5.2.1.1.3.2.3.1.2 "><p>Authentication mode of a file system. This parameter is available when the share protocol of a backup copy is CIFS. Authentication mode of the CIFS protocol, which can be <span><strong>NTLM Authentication</strong></span> or <span><strong>Kerberos Authentication</strong></span>.</p>
<p>In <span><strong>NTLM Authentication</strong></span> mode, you need to enter <span><strong>Domain Name</strong></span>, as well as <span><strong>Username</strong></span> and <span><strong>Password</strong></span> for accessing the NAS share.</p>
<p>In <span><strong>Kerberos Authentication</strong></span> mode, choose the Kerberos authentication information. If a NAS share is registered for the first time, click <span><strong>Create</strong></span> and configure Kerberos authentication information. <a href="nas_s_0024.html#nas_s_0024__table93413354118">Table 2</a> describes the parameters.</p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="13.569999999999999%" headers="mcps1.3.4.2.5.2.1.1.3.2.3.1.1 "><p><span><strong>Overwrite Rule</strong></span></p>
</td>
<td class="cellrowborder" valign="top" width="86.42999999999999%" headers="mcps1.3.4.2.5.2.1.1.3.2.3.1.2 "><p>If files with the same names exist in the restoration path, you can choose to replace or skip existing files.</p>
<ul><li><span><strong>Replace existing files</strong></span></li><li><span><strong>Skip existing files</strong></span></li><li><span><strong>Only replace the files older than the restoration file</strong></span></li></ul>
</td>
</tr>
</tbody>
</table>
</div>
</li><li>Restore data to a new location.<p><a href="#nas_s_0059__table429861453516">Table 3</a> describes the parameters for restoring data to the <span><strong>OceanStor V5</strong></span>, OceanStor Pacific, or NetApp ONTAP.</p>

<div class="tablenoborder"><a name="nas_s_0059__table429861453516"></a><a name="table429861453516"></a><table cellpadding="4" cellspacing="0" summary="" id="nas_s_0059__table429861453516" frame="border" border="1" rules="all"><caption><b>Table 3 </b>Parameters for restoring data to the <span><strong>OceanStor V5</strong></span>, OceanStor Pacific, or NetApp ONTAP</caption><colgroup><col style="width:13.569999999999999%"><col style="width:86.42999999999999%"></colgroup><thead align="left"><tr><th align="left" class="cellrowborder" valign="top" width="13.569999999999999%" id="mcps1.3.4.2.5.2.1.2.2.2.3.1.1"><p>Parameter</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="86.42999999999999%" id="mcps1.3.4.2.5.2.1.2.2.2.3.1.2"><p>Description</p>
</th>
</tr>
</thead>
<tbody><tr><td class="cellrowborder" valign="top" width="13.569999999999999%" headers="mcps1.3.4.2.5.2.1.2.2.2.3.1.1 "><p><span><strong>Storage Device</strong></span></p>
</td>
<td class="cellrowborder" valign="top" width="86.42999999999999%" headers="mcps1.3.4.2.5.2.1.2.2.2.3.1.2 "><p>Select the storage device that resides at a new location.</p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="13.569999999999999%" headers="mcps1.3.4.2.5.2.1.2.2.2.3.1.1 "><p><span><strong>Share Name</strong></span></p>
</td>
<td class="cellrowborder" valign="top" width="86.42999999999999%" headers="mcps1.3.4.2.5.2.1.2.2.2.3.1.2 "><p>Select the name of the share that accesses a file system. If no share is available, click <span><strong>Register</strong></span> to add a NAS share. For details about NAS share registration parameters, see <a href="nas_s_0024.html#nas_s_0024__table1929515516558">Table 1</a>.</p>
<div class="note" id="nas_s_0059__note7377042194715"><span class="notetitle"> NOTE: </span><div class="notebody"><ul id="nas_s_0059__ul1132413149512"><li id="nas_s_0059__li232417146518">For an NFS share, ensure that the current device has the read and write permissions on the NFS share directory and the <strong id="nas_s_0059__nas_s_0030_b576222612114">no_root_squash</strong> option is enabled. For details about how to configure NFS share access permissions, see <a href="nas_s_0025.html">Step 4: Configuring Access Permissions (Applicable to OceanStor V5/OceanStor Pacific/NetApp ONTAP)</a>.</li><li id="nas_s_0059__li77121156195115">For a CIFS share, ensure that the current device has the read and write permissions on the CIFS share directory. You are advised to use a user in the Administrator group for backup. Otherwise, only files and directories whose read and write permissions are granted to the device can be backed up. For details about how to configure CIFS share access permissions, see <a href="nas_s_0025.html">Step 4: Configuring Access Permissions (Applicable to OceanStor V5/OceanStor Pacific/NetApp ONTAP)</a>.</li></ul>
</div></div>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="13.569999999999999%" headers="mcps1.3.4.2.5.2.1.2.2.2.3.1.1 "><p><span><strong>Overwrite Rule</strong></span></p>
</td>
<td class="cellrowborder" valign="top" width="86.42999999999999%" headers="mcps1.3.4.2.5.2.1.2.2.2.3.1.2 "><p>If files with the same names exist in the restoration path, you can choose to replace or skip existing files.</p>
<ul><li><span><strong>Replace existing files</strong></span></li><li><span><strong>Skip existing files</strong></span></li><li><span><strong>Only replace the files older than the restoration file</strong></span></li></ul>
</td>
</tr>
</tbody>
</table>
</div>
<p>For details about the parameters for restoring data to OceanStor Dorado V7/OceanStor V7/OceanStor Dorado 6.x/OceanStor 6.x/OceanProtect 1.3.0 or later, see <a href="#nas_s_0059__table1248313820599">Table 4</a>.</p>

<div class="tablenoborder"><a name="nas_s_0059__table1248313820599"></a><a name="table1248313820599"></a><table cellpadding="4" cellspacing="0" summary="" id="nas_s_0059__table1248313820599" frame="border" border="1" rules="all"><caption><b>Table 4 </b>Parameters for restoring data to OceanStor Dorado V7/OceanStor V7/OceanStor Dorado 6.x/OceanStor 6.x/OceanProtect 1.3.0 or later</caption><colgroup><col style="width:13.569999999999999%"><col style="width:86.42999999999999%"></colgroup><thead align="left"><tr><th align="left" class="cellrowborder" valign="top" width="13.569999999999999%" id="mcps1.3.4.2.5.2.1.2.4.2.3.1.1"><p>Parameter</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="86.42999999999999%" id="mcps1.3.4.2.5.2.1.2.4.2.3.1.2"><p>Description</p>
</th>
</tr>
</thead>
<tbody><tr><td class="cellrowborder" valign="top" width="13.569999999999999%" headers="mcps1.3.4.2.5.2.1.2.4.2.3.1.1 "><p><span><strong>Storage Device</strong></span></p>
</td>
<td class="cellrowborder" valign="top" width="86.42999999999999%" headers="mcps1.3.4.2.5.2.1.2.4.2.3.1.2 "><p>Select the storage device that resides at a new location.</p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="13.569999999999999%" headers="mcps1.3.4.2.5.2.1.2.4.2.3.1.1 "><p><span><strong>File Systems</strong></span></p>
</td>
<td class="cellrowborder" valign="top" width="86.42999999999999%" headers="mcps1.3.4.2.5.2.1.2.4.2.3.1.2 "><p>Select the target file system for restoration.</p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="13.569999999999999%" headers="mcps1.3.4.2.5.2.1.2.4.2.3.1.1 "><p><span><strong>Share Name</strong></span></p>
</td>
<td class="cellrowborder" valign="top" width="86.42999999999999%" headers="mcps1.3.4.2.5.2.1.2.4.2.3.1.2 "><p>Select the share name of the target file system for restoration.</p>
<div class="note"><span class="notetitle"> NOTE: </span><div class="notebody"><ul id="nas_s_0059__nas_s_0059_ul1132413149512_1"><li id="nas_s_0059__nas_s_0059_li232417146518_1">For an NFS share, ensure that the current device has the read and write permissions on the NFS share directory and the <strong id="nas_s_0059__nas_s_0059_nas_s_0030_b576222612114_1">no_root_squash</strong> option is enabled. For details about how to configure NFS share access permissions, see <a href="nas_s_0025.html">Step 4: Configuring Access Permissions (Applicable to OceanStor V5/OceanStor Pacific/NetApp ONTAP)</a>.</li><li id="nas_s_0059__nas_s_0059_li77121156195115_1">For a CIFS share, ensure that the current device has the read and write permissions on the CIFS share directory. You are advised to use a user in the Administrator group for backup. Otherwise, only files and directories whose read and write permissions are granted to the device can be backed up. For details about how to configure CIFS share access permissions, see <a href="nas_s_0025.html">Step 4: Configuring Access Permissions (Applicable to OceanStor V5/OceanStor Pacific/NetApp ONTAP)</a>.</li></ul>
</div></div>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="13.569999999999999%" headers="mcps1.3.4.2.5.2.1.2.4.2.3.1.1 "><p><span><strong>FQDN/IP</strong></span></p>
</td>
<td class="cellrowborder" valign="top" width="86.42999999999999%" headers="mcps1.3.4.2.5.2.1.2.4.2.3.1.2 "><p>FQDN name or service IP address for accessing a NAS share.</p>
<p>The FQDN format is <em id="nas_s_0059__nas_s_0024_i49311011216_1">Name of the storage device where a NAS share resides</em><strong id="nas_s_0059__nas_s_0024_b204885331765_1">.</strong><em id="nas_s_0059__nas_s_0024_i958914467218_1">Name of the domain to which the storage device is added</em>. For example, if the name of the storage device where a NAS share resides is <em id="nas_s_0059__nas_s_0024_i1299311513208_1">Huawei.Storage</em> and the name of the domain to which the storage device is added is <em id="nas_s_0059__nas_s_0024_i2993851132016_1">huawei.com</em>, the FQDN is <em id="nas_s_0059__nas_s_0024_i1899345112011_1">Huawei.Storage.huawei.com</em>.</p>
<div class="note"><span class="notetitle"> NOTE: </span><div class="notebody"><p id="nas_s_0059__nas_s_0024_p53320310365_1">If the FQDN is required, configure the DNS service on the device management page of the <span id="nas_s_0059__nas_s_0024_text9722133614203_1">OceanProtect</span> so that the <span id="nas_s_0059__nas_s_0024_text87224362209_1">OceanProtect</span> can access external domain names. For details about how to configure the DNS service, see <a href="nas_s_0099.html">Configuring the DNS Service</a>.</p>
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<tr><td class="cellrowborder" valign="top" width="13.569999999999999%" headers="mcps1.3.4.2.5.2.1.2.4.2.3.1.1 "><p><span><strong>Authentication Method</strong></span></p>
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<td class="cellrowborder" valign="top" width="86.42999999999999%" headers="mcps1.3.4.2.5.2.1.2.4.2.3.1.2 "><p id="nas_s_0059__p13448419814">Authentication mode of a file system. This parameter is available when the share protocol of a backup copy is CIFS. For details about this parameter, see <a href="nas_s_0024.html#nas_s_0024__table1929515516558">Table 1</a>.</p>
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<tr><td class="cellrowborder" valign="top" width="13.569999999999999%" headers="mcps1.3.4.2.5.2.1.2.4.2.3.1.1 "><p><span><strong>Overwrite Rule</strong></span></p>
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<td class="cellrowborder" valign="top" width="86.42999999999999%" headers="mcps1.3.4.2.5.2.1.2.4.2.3.1.2 "><p>If files with the same names exist in the restoration path, you can choose to replace or skip existing files.</p>
<ul><li><span><strong>Replace existing files</strong></span></li><li><span><strong>Skip existing files</strong></span></li><li><span><strong>Only replace the files older than the restoration file</strong></span></li></ul>
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</li></ul>
</p></li><li><span>Click <span class="uicontrol"><b><span><strong>OK</strong></span></b></span>.</span></li></ol>
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<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="nas_s_0056.html">Restoration</a></div>
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